Answer
$-9n^{4}$
Work Step by Step
RECALL:
$\dfrac{a^m}{a^n} = a^{m-n}$
Divide the coefficients, and then use the rule above to obtain:
$=-9n^{8-4}
\\=-9n^{4}$
Elementary Algebra
by Kaufmann, Jerome; Schwitters, Karen;
Published by
Cengage Learning
ISBN 10:
1285194055
ISBN 13:
978-1-28519-405-9
Chapter 5 - Exponents and Polynomials - 5.4 - Dividing by Monomials - Problem Set 5.4 - Page 212: 6
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